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Posted to oak-issues@jackrabbit.apache.org by "Tomek Rękawek (JIRA)" <ji...@apache.org> on 2016/01/26 13:07:39 UTC

[jira] [Created] (OAK-3924) Fix database-level row deadlock during bulk updates in RDB

Tomek Rękawek created OAK-3924:
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             Summary: Fix database-level row deadlock during bulk updates in RDB
                 Key: OAK-3924
                 URL: https://issues.apache.org/jira/browse/OAK-3924
             Project: Jackrabbit Oak
          Issue Type: Sub-task
          Components: rdbmk
            Reporter: Tomek Rękawek
             Fix For: 1.4


It seems that the new bulk createOrUpdate() implementation in RDB is prone for the deadlocks. It isn't a bug in the Oak code, but rather something related to the database implementations. The bug can be observed if we have multiple  simultaneous bulk updates and some of the rows repeat among them. The attached patch contains an unit test presenting the issue.



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